minitest provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking. "I had a class with Jim Weirich on testing last week and we were allowed to choose our testing frameworks. Kirk Haines and I were paired up and we cracked open the code for a few t...

This utility presents hints and suggestions to give you an idea of potentially troublesome spots in your code and dependencies that keep your code from running efficiently on JRuby. Most pure Ruby code will run fine, but the two common areas that trip people up are native extensions a...